The deaths of gay men in 2015 went unconnected despite similarities between the cases and a history of serial killers targeting gay men. A 2007 review into the Metropolitan Police's investigation of 10 killings and attacks on LGBT people concluded that the police's work on such cases was influenced by institutional homophobia. The review, published by the independent police advisors LGBT Advisory Group, condemned the 1993 Gay Slayer police investigation as a "serious failure of policing." It said: "The initial investigations seemed to us to be more focused on determining promiscuity and risk taking," adding that more should have been done to warn the community.

In fact, one of the world's foremost experts on serial killers, the British criminologist David Wilson, says that the gay community receives "at best, a patchy service from the police." In his 2007 book Serial Killers: Hunting Britons and Their Victims 1960-2006, Wilson concluded that "homophobia has created the circumstances in which gay men have become one of the prime targets of serial killers in this country."

While somewhere between one and ten percent of the UK population is LGBT, since Nilsen's conviction in 1983, gay men have accounted for all or most of the victims of five out of the 14 serial killers since active in the UK. Read more via VICE